Alright, one more! It can't be many more, Isdead seems to be undefined now too.
TypeError
Cannot read property 'isDead' of undefined.
These errors only pop up when you enter a battle, otherwise it's perfectly working so it's not a severe incompatibility or anything, and the turn order does initialize as do the characters, it's just that when the menu pops up normally, these errors occur.
I'd have given you both error codes the first time but only one error pops up in MV each time you crash, so I had no clue more was error'ing.